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Volcano and photo tour to Java, Indonesia Visit Java's famous volcanoes: Krakatau, Merapi, Bromo, Semeru, Ijen and others, crossing Java from west to east. This study and photography trip for a small exclusive group is one of our classic and best tours.
Introduction to Plate Tectonics The Earth's upper, rigid layer is broken into several plates which are in constant motion to one another. Most earthquakes and volcanoes occur as result of these plate boundaries.